Preheat oven to 375 degrees f. Line a rimmed baking tray with parchment paper.

Slice cauliflower into 1/4 inch-thick slices and lay it on the baking sheet.

Drizzle just enough olive oil to coat (a few teaspoons). Season generously with sea salt and pepper.

Flip the cauliflower slices on the other side and repeat.

Bake, turning once, until caramelized on edges and tender, about 25 to 30 minutes.

Serve hot.